Lumin PDF is a neat device that I wrote about a few years in the past when one among my colleagues wanted a approach for her math college students to attract on PDFs that she despatched to them in Google Classroom. You possibly can learn extra about that state of affairs proper right here.
I simply acquired an e-mail from Lumin PDF asserting that the entire premium options are actually obtainable to academics and their college students totally free! The premium options embrace merging and splitting PDFs, highlighting (along with the conventional annotating choices), and the removing of banner promoting. And Lumin PDF integrates with Google Classroom. You possibly can register for a free Lumin PDF premium account right here.